Support license installation via system property path

cf: https://help.sonatype.com/en/installing-and-updating-licenses.html#installing-or-updating-a-license-using-a-system-property

resources/default.rb

@@ -17,6 +17,7 @@
 property :properties_variables, Hash, default: lazy { node['nexus3']['properties_variables'] }
 property :vmoptions_variables, Hash, default: lazy { node['nexus3']['vmoptions_variables'] }
 property :outbound_proxy, [Hash, NilClass], sensitive: true, default: lazy { node['nexus3']['outbound_proxy'] }
+property :license, [String, NilClass], sensitive: true, default: lazy { node['nexus3']['license'] }
 property :plugins, Hash, default: lazy { node['nexus3']['plugins'] }
 property :logback_variables, Hash, default: lazy { node['nexus3']['logback_variables'] }
 
@@ -69,6 +70,27 @@
   port = new_resource.properties_variables['application-port']
   blocker = "block until Nexus #{new_resource.service_name}@#{port} operational"
 
+  directory "license directory for #{new_resource.instance_name}" do
+    path(lazy { ::File.dirname(new_resource.properties_variables['nexus.licenseFile']) })
+    recursive true
+    owner     'root'
+    group     'root'
+    mode      '0755'
+    only_if { new_resource.license && new_resource.properties_variables['nexus.licenseFile'] }
+  end
+
+  file "license for #{new_resource.instance_name}" do
+    action    :create
+    owner     'root'
+    group     new_resource.nexus3_group
+    mode      '0640'
+    sensitive true
+    content(lazy { ::Base64.decode64(new_resource.license) })
+    only_if { new_resource.license && new_resource.properties_variables['nexus.licenseFile'] }
+    notifies :restart, "nexus3_service[#{new_resource.service_name}]", :delayed
+    notifies :run, "ruby_block[#{blocker}]", :delayed
+  end
+
   # Install configuration from templates
   template ::File.join(install_dir, 'bin', 'nexus.rc') do
     source 'nexus.rc.erb'